CRM-15578 - Add navigation entries for A/B testing
CRM-15578 - Add "status" column to MailingAB
CRM-15578 - Rename "civicrm_mailing_abtesting" to "civicrm_mailing_abtest"
Remove debug code
CRM-15578 - Mailing.submit API - Accept "approval_note"
CRM-15578 - MailingAB.submit API
CRM-15578 - crmMailingAB - Submit UI
DRY - crmNow
CRM-15578 - crmMailingAB - Improve listing

 * Translate strings
 * Remove unused help section
 * Display status
crmD3 - Add stub module for declaring dependencies on D3
crmMailingAB - Transplant report. Decouple stats API.

Note: Previously, the MailingAB.graph_stats API keyed off the pre-declared
"winning criteria" and target date, which made it necessary to choose these
things in advance.  This API now accepts these as parameters which can be
tweaked interactively (based on what the user whats to investigate).

The graphs don't really work right now, but I've transplanted the code to
show how to encapsulate it in a directive.
crmMailingAB - Report - Add options to view mailing content, select winner, & view winner stats
civicrm_generated.mysql - Regenerate
Merge pull request #4759 from totten/master-civimail-status

CRM-15578 - Various updates to A/B testing